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sergeinik [125]
4 years ago
9

Why do some red blood cells undergo programmed death? They are healthy. The body must balance the blood cell count. Their concen

tration is too low. There is too much oxygen in the blood.
Biology
2 answers:
vazorg [7]4 years ago
8 0
I think the answer is B.
inn [45]4 years ago
3 0
The body must balance the blood cell count.
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Teniendo en cuenta problemáticas de la biología o de su aprendizaje ,pensar un tema investigar desde el enfoque cualita tivo y o
Naily [24]

Answer:

Caso de estudio: El efecto de estresores ambientales sobre el comportamiento animal

- Ejemplo de un tipo de estudio cualitativo: la influencia de estresores ambientales (por ej. niveles anormales de dióxido de carbono atmosférico) sobre el comportamiento en ratones de laboratorio  

- Ejemplo de un tipo de estudio cuantitativo: la influencia de estresores ambientales sobre los niveles de producción de hormonas asociadas a cambios comportamentales en ratones de laboratorio  

Explanation:

Un enfoque cualitativo se caracteriza por el hecho de que la información obtenida durante dicho estudio se agrupa en categorías mutuamente excluyentes. En biología, los estudios de tipo cualitativo generalmente se caen dentro de la dicotomía observacional (es decir, presencia o ausencia del factor en estudio). En el ejemplo arriba citado, es posible obtener datos relacionados a uno o más determinado aspectos comportamentales en los individuos bajo estudio (por ejemplo, presencia o ausencia de signos de irritabilidad) en ratones sometidos a algún estresor ambiental (por ejemplo, niveles anormales de CO2 atmosférico). Por otra parte, en un enfoque cuantitativo, la información se recopila en intervalos obtenidos a partir de operaciones aritméticas (estadística paramétrica). En el ejemplo, los datos obtenidos pueden ser clasificados en intervalos referidos a los niveles hormonales. Esta información resulta útil para determinar si las diferencias en los niveles hormonales entre individuos que se encuentran en presencia del estresor ambiental son estadísticamente significativas respecto al grupo control (individuos desarrollados en un ambiente con niveles normales de CO2 atmosférico), y de este modo concluir si el estresor ambiental puede o no modificar variables comportamentales. Los estudios cualitativos permiten el uso de variables independientes las cuales son clasificadas como cualitativas (discretas).

5 0
3 years ago
What is a difference between exoskeletons and endoskeletons?
Sati [7]

Answer: d. exoskeletons are external to the soft tissues, and endoskeletons are internal

Explanation:

The skeleton can be define as the body part of the living beings which act as a supporting structure which maintains the posture and provides the supporting framework to the body. The exoskeleton is the skeletal structure that protects the body from outside. It encloses within it the soft tissues and organs of the body. It is the characteristic feature of the invertebrates. It is the external feature of the body. It also provides protection against the predator. The endoskeleton is the skeletal structure which serves as a attachment point for the muscles. It is the internal feature of the body.

6 0
4 years ago
The amount of salt found in water is A. Temperature B. Salinity C. Pollution D. Density
kipiarov [429]

Answer:

B. Salinity

Explanation:

Salinity Definition: of, containing, or resembling common table salt; salty or saltlike

Hope This Helped! Good Luck!!

5 0
3 years ago
Read 2 more answers
Describe the appearance and structure of DNA.
maxonik [38]

Answer: it’s a made up of molecules called nucleotides. Each nucleotides contain a phosphate group, a sugar group and nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G), and cytosine (C)

Explanation:

4 0
4 years ago
During a natural disaster, part of a plant was damaged. If the plant can no longer grow, and produce new root cells, which part
Lorico [155]

Answer: c

Explanation:

the meristem is where the growth occurs.

8 0
3 years ago
Read 2 more answers
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